CN104196118A - Automatic pool vacuum-flushing and desilting device and method - Google Patents

Abstract

The invention relates to an automatic vacuum flushing and dredging device for pools. The device is used for flushing and dredging pools. The device includes a vacuum pump, a vacuum diaphragm valve, a flushing chamber and a siphon unit. The flushing chamber is connected to the pool through the siphon unit, and the flushing chamber passes through The vacuum diaphragm valve is connected with the vacuum pump; the vacuum pump and the vacuum diaphragm valve control the water in the pool to enter the flushing chamber and reach the set height, close the vacuum diaphragm valve and empty the remaining water in the pool, and the siphon unit prevents the flushing water in the flushing chamber from entering the pool , open the vacuum diaphragm valve, the flushing water in the flushing chamber enters the pool and takes away the sludge in the pool. Compared with the prior art, the invention has the advantages of simple structure, saving water resources and the like.

Description

A pool automatic vacuum flushing desilting device and method

technical field

The invention relates to water conservancy technical equipment, in particular to an automatic vacuum flushing and dredging device and method for a pool.

Background technique

After urban point source pollution is effectively controlled, the environmental quality of surface water will be improved. However, it is more difficult to further improve the water quality, especially during the flood season. The staged pollution of river water quality is serious. The main reason is that the initial rainwater pollution is serious. This is also one of the main reasons for the continuous improvement of the environmental quality of surface water in cities both at home and abroad. Rainwater storage tank is an effective engineering measure to control initial rainwater pollution, and it has been used for many years in Germany, the United States, Japan and other countries. In the past ten years, domestic Shanghai, Beijing, Kunming, Wuhan, Nanjing and other places have also begun to design, construct and operate rainwater storage tanks. As of 2013, Shanghai has built and used 11 rainwater storage tanks.

Since the storage water of the rainwater storage tank has the characteristics of high concentration of suspended particles and high concentration of organic pollutants, after the sewage stays in the tank for several hours, the pollutants and impurities in the water will be deposited. Therefore, after the rainwater storage tank is emptied, the storage tank A certain thickness of silt will accumulate at the bottom, which not only occupies the volume of the pool, but also emits an odor. In order to eliminate the above-mentioned effects, the sediment at the bottom of the pool must be effectively washed and removed in time after the rainwater storage tank is emptied. At present, the common flushing and dredging methods for rainwater storage tanks include submersible mixer stirring flushing, hydraulic tipping bucket flushing, continuous trench flushing, and portal self-flushing. The existing above-mentioned technologies have the disadvantages of low flushing efficiency to varying degrees, equipment damage, high energy consumption and high cost.

For example, the Chinese patent application number 201210123052.9 discloses a water collecting well dredging system and its dredging method. Sandy water flow collection pipes are buried in the area, which is characterized in that: the floor of the water collection well is set with a certain slope, and the grab type dredging device is installed above the water collection well and corresponding to the lowest part of the bottom plate; the bottom of the water collection well is equipped with sediment density and sedimentation height measurement System and sediment collection high pressure flushing system. The present invention is suitable for hydropower and water conservancy projects, especially for the cleaning of sediments at the bottom of sump wells in underground powerhouses, dams and pad ponds of hydropower stations, as well as for the cleaning of sediments at the bottom of sump wells of pumping stations, and is also applicable to various water diversion The intake pond of the project and the sedimentation pond of the sewage treatment plant and other areas. However, the flushing of the present invention needs to be realized by a high-pressure punching system. In this way, firstly, the high-voltage equipment itself is expensive, and secondly, for the need to lay cables, the insulation problem of the cables also increases the construction cost unintentionally. No doubt it has also increased.

Therefore, scientific research and development and engineering technicians in this field are committed to developing a pool automatic vacuum flushing and desilting device and method with simple structure, remarkable effect, convenient operation and low cost.

Contents of the invention

The object of the present invention is to provide an automatic vacuum flushing and desilting device for pools in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

An automatic vacuum flushing and dredging device for pools, the device is used for flushing and dredging pools, the device includes a vacuum pump, a vacuum diaphragm valve, a flushing chamber and a siphon unit, the flushing chamber is connected to the pool through the siphon unit, the The flushing chamber is connected with the vacuum pump through the vacuum diaphragm valve;

After the vacuum pump and the vacuum diaphragm valve control the water in the pool to enter the flushing chamber and reach the set height, close the vacuum diaphragm valve and empty the remaining water in the pool, the siphon unit prevents the flushing water in the flushing chamber from entering the pool, and turns on the vacuum Diaphragm valve, the flushing water in the flushing chamber enters the pool and takes away the sludge in the pool.

The siphon unit includes a blocking valve, and the blocking valve is arranged on the channel of the siphon unit.

The device also includes an automatic control unit and a backup water source, the automatic control unit is connected with a vacuum pump, a vacuum diaphragm valve and a barrier valve, the flushing chamber is connected with the backup water source, and the automatic control unit controls the vacuum pump, the vacuum diaphragm valve and blocking the opening and closing of the valve, the backup water source provides flushing water for the flushing chamber when there is no water in the pool.

The vacuum pump controls the vacuum of the flushing chamber.

The automatic control unit is connected with a remote control center, and the remote control center can control the opening and closing of the vacuum pump, vacuum diaphragm valve and barrier valve through the automatic control unit.

The set height is less than 7 meters.

A flushing and dredging method for realizing an automatic vacuum flushing and dredging device for a pool, characterized in that the method includes two modes of pool water cleaning and standby water cleaning,

The pool water cleaning mode includes the following steps:

101) After the pool is filled with water, the vacuum diaphragm valve is opened, and the water in the pool enters the flushing chamber;

102) the vacuum diaphragm valve is closed;

103) Empty the remaining water in the pool, during which the siphon unit keeps the flushing water level of the flushing chamber unchanged;

104) The vacuum diaphragm valve is opened, a large amount of air enters the flushing chamber, the vacuum degree of the flushing chamber drops, and the siphon phenomenon of the siphon unit is destroyed, causing the flushing water in the flushing chamber to quickly rush into the bottom of the pool , The pool is cleaned and silted.

The standby water cleaning mode includes the following steps:

201) The vacuum pump and the vacuum diaphragm valve are opened, and the barrier valve is closed;

202) After the standby water source is filled with water in the flushing chamber, the vacuum pump and the vacuum diaphragm valve are closed;

203) The barrier valve is opened;

204) The vacuum diaphragm valve is opened, a large amount of air enters the flushing chamber, the vacuum degree of the flushing chamber drops, and the siphon phenomenon of the siphon unit is destroyed, causing the flushing water in the flushing chamber to quickly rush into the bottom of the pool , The pool is cleaned and silted.

Described step 101) comprises substep:

1011) The vacuum diaphragm valve is opened, and the water in the pool enters the flushing chamber;

1012) Judging whether the water level in the flushing chamber reaches the set value, if yes, execute step 102), if no, execute step 1013);

1013) The vacuum pump is turned on, and the water in the pool further enters the flushing chamber.

Compared with the prior art, the present invention has the following advantages:

1) The slope of the bottom of the pool has a wide range of applications, and the pool type has a wide range of applications, which saves construction space, engineering quantities and infrastructure costs. The system is easy to maintain, improves the health and safety of operators, and utilizes the potential energy of flushing water to convert into kinetic energy. Lower energy consumption than direct compressed water flushing.

2) The barrier valve can be used to store water in the flushing chamber when using the backup water source for cleaning when there is no water in the pool.

3) The automatic control unit is adopted, which can be programmed to fully automate the flushing and dredging process without additional energy consumption, reducing operating costs, automatic system control, and information management of the entire process. Daily maintenance only requires the vacuum pump Maintenance is carried out with the vacuum diaphragm valve, the operation stability is high, and daily management is easy to implement.

4) The degree of vacuum is controlled. On the one hand, the water level in the flushing chamber can be higher than the water level in the pool, so that the flushing water level in the flushing pool reaches the standard. On the other hand, it can also be used when the water in the square empty pool is empty without the use of a barrier valve. It can also keep the water in the flushing chamber from running off, and at the same time, it consumes less energy than directly raising the water.

5) The remote center can remotely control the entire flushing process.

6) The height of the water level in the flushing chamber is less than 7 meters. On the one hand, the potential energy generated by the water level of 7 meters is sufficient for dredging, and on the other hand, the energy consumption caused by the water level above 7 meters is too high.

7) The flushing water comes from the water in the pool, which saves water resources.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is a schematic diagram of the empty pool mode in the embodiment;

Fig. 3 is a schematic diagram of the water inlet mode in the embodiment;

Fig. 4 is a schematic diagram of a non-full pool mode in an embodiment;

Fig. 5 is a schematic diagram of the full pool mode in the embodiment;

Fig. 6 is a schematic diagram of the emptying mode in the embodiment;

Figure 7 is a schematic diagram of the vacuum flushing mode in the embodiment;

1. Automatic control unit, 2. Vacuum pump, 3. Vacuum diaphragm valve, 4. Maximum water level in flushing chamber, 5. Flushing chamber, 6. Siphon unit; 7. Lower limit of sludge layer, 8. Sludge tank, 9. Standby Water source, 10, upper limit of sludge layer, 11, rainwater storage tank, 12, water level of rainwater storage tank, 13, bottom silt of rainwater storage tank, 14, flushing water flow.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

As shown in Figure 1, it is an embodiment of the present invention, a pool automatic vacuum flushing desilting device, the device is used for flushing and dredging the rainwater storage tank 11, the device includes a vacuum pump 2, a vacuum diaphragm valve 3, a flushing Chamber 5 and siphon unit 6, the flushing chamber 5 is connected to the rainwater storage tank through the siphon unit 6, and the top of the flushing chamber 5 is connected to the vacuum pump 2 through the vacuum diaphragm valve 3;

Vacuum pump 2 and vacuum diaphragm valve 3 control the water in the rainwater storage tank to enter the flushing chamber 5 and reach the set height, then close the vacuum diaphragm valve 3 and empty the remaining water in the rainwater storage tank, and the siphon unit 6 prevents the water in the flushing chamber 5 from The flushing water in the flushing chamber enters the rainwater storage tank, the vacuum diaphragm valve 3 is opened, and the flushing water in the flushing chamber 5 enters the rainwater storage tank and takes away the sludge in the rainwater storage tank.

Wherein the parameter models of the vacuum pump 2 and the vacuum diaphragm valve 3 are determined according to the specific parameters of the rainwater storage tank.

The size of the installation space of the vacuum diaphragm valve 3 is not less than 700mm×900mm, and the distance from the surrounding structures is not less than 250mm.

The siphon unit 6 includes a blocking valve 61 provided on a channel of the siphon unit 6 .

The device also includes an automatic control unit 1 and a backup water source 9, the automatic control unit 1 is connected with the vacuum pump 2, the vacuum diaphragm valve 3 and the barrier valve 61, the flushing chamber is connected with the backup water source 9, and the automatic control unit 1 controls the vacuum pump 2 and the vacuum diaphragm valve 3 And the opening and closing of the blocking valve 61, the standby water source 9 provides flushing water for the flushing chamber 5 when there is no water in the rainwater storage tank.

The vacuum pump 2 controls the vacuum degree of the flushing chamber 5 .

The automatic control unit 1 is connected with the remote control center, and the remote control center can control the opening and closing of the vacuum pump 2 , the vacuum diaphragm valve 3 and the blocking valve 61 through the automatic control unit 1 .

The water level setting height of the flushing chamber 5 is less than 7 meters, which is determined comprehensively according to the length, width, slope and flushing water head of the corridor at the bottom of the rainwater storage tank 11. The width of the flushing chamber 5 is not less than 800 mm, which is convenient for maintenance when necessary Personnel enter.

An automatic vacuum flushing and desilting method for a pool as described above with the automatic vacuum flushing and desilting device for the pool, the method includes two modes of pool water cleaning and standby water cleaning,

The pool water wash mode consists of the following steps:

101) After the rainwater storage tank is full of water, the automatic control unit 1 opens the vacuum diaphragm valve 3, and the water in the rainwater storage tank enters the flushing chamber 5;

102) The automatic control unit 1 closes the vacuum diaphragm valve 3;

103) Empty the remaining water in the rainwater storage tank, during which the siphon unit 6 keeps the flushing water level of the flushing chamber 5 unchanged;

104) The automatic control unit 1 opens the vacuum diaphragm valve 3;

105) A large amount of air enters the flushing chamber 5, the vacuum degree of the flushing chamber 5 drops, and the siphon phenomenon of the siphon unit 6 is destroyed, causing the flushing water in the flushing chamber 5 to quickly rush into the bottom of the rainwater storage tank, and the rainwater storage tank is cleaned and silted .

The alternate water wash mode consists of the following steps:

201) The automatic control unit 1 opens the vacuum pump 2 and the vacuum diaphragm valve 3, and closes the isolation valve 61;

202) After the standby water source 9 is filled with water for the flushing chamber 5, the automatic control unit 1 closes the vacuum pump 2 and the vacuum diaphragm valve 3;

203) After the automatic control unit 1 opens the barrier valve 61, then opens the vacuum diaphragm valve 3;

204) A large amount of air enters the flushing chamber 5, the vacuum degree of the flushing chamber 5 drops, and the siphon phenomenon of the siphon unit 6 is destroyed, causing the flushing water in the flushing chamber 5 to quickly rush into the bottom of the rainwater storage tank, and the rainwater storage tank is cleaned and silted .

Step 101) includes sub-steps:

1011) The automatic control unit 1 opens the vacuum diaphragm valve 3, and the water in the rainwater storage tank enters the flushing chamber 5;

1012) Determine whether the water level in the flushing chamber 5 reaches the set value, if yes, then execute step 102), if no, then execute step 1013)

1013) The automatic control unit 1 turns on the vacuum pump, and the water in the rainwater storage tank further enters the flushing chamber 5 .

As shown in Figures 2 to 7, in the rainfall mode, the operation process of the automatic vacuum flushing and desilting system of the rainwater storage tank.

As shown in FIG. 2 , before the rain falls, the rainwater storage tank 11 is in an empty state.

As shown in Figure 3, after the rainfall begins, the automatic control unit 1 controls the vacuum diaphragm valve 3 to open, and the sewage enters the rainwater storage tank 11 through the collection pipe, and the water level of the rainwater storage tank 12 and the water level of the flushing chamber 5 rise at the same time, and maintain a uniform flat.

As shown in Figure 4, the rainfall continues, the water level of the rainwater storage tank 12 and the water level of the flushing chamber 5 continue to rise, the rainwater storage tank 11 is full, and after the water level of the flushing chamber 5 reaches the highest water level 4 of the flushing chamber, the automatic control unit 1 controls the vacuum pump 2 and vacuum diaphragm valves are closed.

As shown in Figure 5, after the rain stops, the rainwater storage tank 11 is not full, the automatic control unit 1 controls the vacuum pump 2 to turn on, the sewage in the rainwater storage tank 11 enters the flushing chamber 5 through the vacuum negative pressure, and the water level in the flushing chamber reaches the flushing chamber The highest water level is 4, and the automatic control unit 1 automatically closes the vacuum pump 2 and the vacuum diaphragm valve.

As shown in FIG. 6 , before the rainwater storage tank 11 starts to empty, the automatic control unit 1 controls the vacuum diaphragm valve to close, and then the rainwater storage tank 11 is emptied, and the sludge 13 is deposited at the bottom of the rainwater storage tank 11 . Due to the vacuum state at the top of the flushing chamber 5 and the structural characteristics of the siphon unit 6, a siphon is formed, and the flushing water level in the flushing chamber 5 remains the highest water level 4 unchanged.

As shown in Figure 7, after the rainwater storage tank 11 is emptied, the automatic control unit 1 controls the vacuum diaphragm valve 3 to open, a large amount of air enters the flushing chamber 5, the vacuum degree of the flushing chamber 5 drops, and the siphon phenomenon of the siphon unit 6 is destroyed, resulting in flushing The flushing water in the chamber 5 quickly rushes into the bottom of the rainwater storage tank 11 through the channel at the bottom of the flushing chamber 5, and the rainwater storage tank 11 is cleaned and silted. The sludge 13 and the flushing water 14 after the rainwater storage tank 11 cleans and flushes are discharged into the sludge tank 8, and discharged into the municipal drainage pipe network through pipelines.

Claims (7)

1. An automatic vacuum flushing and dredging device for pools, the device is used for flushing and dredging of pools, it is characterized in that the device comprises a vacuum pump, a vacuum diaphragm valve, a flushing chamber and a siphon unit, and the flushing chamber passes through the siphon unit It is connected with the pool, and the flushing chamber is connected with the vacuum pump through the vacuum diaphragm valve; After the vacuum pump and the vacuum diaphragm valve control the water in the pool to enter the flushing chamber and reach the set height, close the vacuum diaphragm valve and empty the remaining water in the pool, the siphon unit prevents the flushing water in the flushing chamber from entering the pool, and turns on the vacuum Diaphragm valve, the flushing water in the flushing chamber enters the pool and takes away the sludge in the pool. 2 . The automatic vacuum flushing and desilting device for pools according to claim 1 , wherein the siphon unit includes a blocking valve, and the blocking valve is arranged on a channel of the siphon unit. 3 . 3. The automatic vacuum flushing and desilting device for a pool according to claim 2, characterized in that the device also includes an automatic control unit and a backup water source, and the automatic control unit is connected with a vacuum pump, a vacuum diaphragm valve and a barrier valve , the flushing chamber is connected to the backup water source, the automatic control unit controls the opening and closing of the vacuum pump, the vacuum diaphragm valve and the blocking valve, and the backup water source provides flushing water for the flushing chamber when there is no water in the pool. 4. The automatic vacuum flushing and desilting device for a pool according to claim 3, wherein the automatic control unit is connected to a remote control center, and the remote control center controls the vacuum pump and the vacuum diaphragm through the automatic control unit Opening and closing of valves and barrier valves. 5. A pool automatic vacuum flushing and desilting device according to claim 1, characterized in that the set height is less than 7 meters. 6. A method for flushing and dredging realizing the automatic vacuum flushing and dredging device for pools as claimed in claim 3, characterized in that the method comprises two modes of pool water cleaning and standby water cleaning, The pool water cleaning mode includes the following steps: 101) After the pool is filled with water, the vacuum diaphragm valve is opened, and the water in the pool enters the flushing chamber; 102) the vacuum diaphragm valve is closed; 103) Empty the remaining water in the pool, during which the siphon unit keeps the flushing water level of the flushing chamber unchanged; 104) The vacuum diaphragm valve is opened, a large amount of air enters the flushing chamber, the vacuum degree of the flushing chamber drops, and the siphon phenomenon of the siphon unit is destroyed, causing the flushing water in the flushing chamber to quickly rush into the bottom of the pool , to clean the pool and wash away the silt; The standby water cleaning mode includes the following steps: 201) The vacuum pump and the vacuum diaphragm valve are opened, and the barrier valve is closed; 202) After the standby water source is filled with water in the flushing chamber, the vacuum pump and the vacuum diaphragm valve are closed; 203) The barrier valve is opened; 204) The vacuum diaphragm valve is opened, a large amount of air enters the flushing chamber, the vacuum degree of the flushing chamber drops, and the siphon phenomenon of the siphon unit is destroyed, causing the flushing water in the flushing chamber to quickly rush into the bottom of the pool , The pool is cleaned and silted. 7. A kind of pool automatic vacuum flushing dredging method according to claim 6, is characterized in that, described step 101) comprises substep: 1011) The vacuum diaphragm valve is opened, and the water in the pool enters the flushing chamber; 1012) Judging whether the water level in the flushing chamber reaches the set value, if yes, execute step 102), if no, execute step 1013); 1013) The vacuum pump is turned on, and the water in the pool further enters the flushing chamber.